Harmonix Sue, Then Unsue, Activision

More Guitar Hero lawsuits! Don't make that face, you know you can't get enough of them. This time around it's series creator Harmonix on the legal warpath, who have (briefly) sued current franchise holders Activision over unpaid royalties. Seems the contract signed by Harmonix and Red Octane over the original Guitar Hero contained a clause that said Harmonix would earn one of two royalty payment schemes if they ever left the series.